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| 1 | +/* |
| 2 | + * Copyright 2007-present the original author or authors. |
| 3 | + * |
| 4 | + * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | + * you may not use this file except in compliance with the License. |
| 6 | + * You may obtain a copy of the License at |
| 7 | + * |
| 8 | + * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | + * |
| 10 | + * Unless required by applicable law or agreed to in writing, software |
| 11 | + * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | + * See the License for the specific language governing permissions and |
| 14 | + * limitations under the License. |
| 15 | + */ |
| 16 | +importjava.net.*; |
| 17 | +importjava.io.*; |
| 18 | +importjava.nio.channels.*; |
| 19 | +importjava.util.Properties; |
| 20 | + |
| 21 | +publicclassMavenWrapperDownloader { |
| 22 | + |
| 23 | +privatestaticfinalStringWRAPPER_VERSION ="0.5.6"; |
| 24 | +/** |
| 25 | + * Default URL to download the maven-wrapper.jar from, if no 'downloadUrl' is provided. |
| 26 | + */ |
| 27 | +privatestaticfinalStringDEFAULT_DOWNLOAD_URL ="https://repo.maven.apache.org/maven2/io/takari/maven-wrapper/" |
| 28 | + +WRAPPER_VERSION +"/maven-wrapper-" +WRAPPER_VERSION +".jar"; |
| 29 | + |
| 30 | +/** |
| 31 | + * Path to the maven-wrapper.properties file, which might contain a downloadUrl property to |
| 32 | + * use instead of the default one. |
| 33 | + */ |
| 34 | +privatestaticfinalStringMAVEN_WRAPPER_PROPERTIES_PATH = |
| 35 | +".mvn/wrapper/maven-wrapper.properties"; |
| 36 | + |
| 37 | +/** |
| 38 | + * Path where the maven-wrapper.jar will be saved to. |
| 39 | + */ |
| 40 | +privatestaticfinalStringMAVEN_WRAPPER_JAR_PATH = |
| 41 | +".mvn/wrapper/maven-wrapper.jar"; |
| 42 | + |
| 43 | +/** |
| 44 | + * Name of the property which should be used to override the default download url for the wrapper. |
| 45 | + */ |
| 46 | +privatestaticfinalStringPROPERTY_NAME_WRAPPER_URL ="wrapperUrl"; |
| 47 | + |
| 48 | +publicstaticvoidmain(Stringargs[]) { |
| 49 | +System.out.println("- Downloader started"); |
| 50 | +FilebaseDirectory =newFile(args[0]); |
| 51 | +System.out.println("- Using base directory: " +baseDirectory.getAbsolutePath()); |
| 52 | + |
| 53 | +// If the maven-wrapper.properties exists, read it and check if it contains a custom |
| 54 | +// wrapperUrl parameter. |
| 55 | +FilemavenWrapperPropertyFile =newFile(baseDirectory,MAVEN_WRAPPER_PROPERTIES_PATH); |
| 56 | +Stringurl =DEFAULT_DOWNLOAD_URL; |
| 57 | +if(mavenWrapperPropertyFile.exists()) { |
| 58 | +FileInputStreammavenWrapperPropertyFileInputStream =null; |
| 59 | +try { |
| 60 | +mavenWrapperPropertyFileInputStream =newFileInputStream(mavenWrapperPropertyFile); |
| 61 | +PropertiesmavenWrapperProperties =newProperties(); |
| 62 | +mavenWrapperProperties.load(mavenWrapperPropertyFileInputStream); |
| 63 | +url =mavenWrapperProperties.getProperty(PROPERTY_NAME_WRAPPER_URL,url); |
| 64 | + }catch (IOExceptione) { |
| 65 | +System.out.println("- ERROR loading '" +MAVEN_WRAPPER_PROPERTIES_PATH +"'"); |
| 66 | + }finally { |
| 67 | +try { |
| 68 | +if(mavenWrapperPropertyFileInputStream !=null) { |
| 69 | +mavenWrapperPropertyFileInputStream.close(); |
| 70 | + } |
| 71 | + }catch (IOExceptione) { |
| 72 | +// Ignore ... |
| 73 | + } |
| 74 | + } |
| 75 | + } |
| 76 | +System.out.println("- Downloading from: " +url); |
| 77 | + |
| 78 | +FileoutputFile =newFile(baseDirectory.getAbsolutePath(),MAVEN_WRAPPER_JAR_PATH); |
| 79 | +if(!outputFile.getParentFile().exists()) { |
| 80 | +if(!outputFile.getParentFile().mkdirs()) { |
| 81 | +System.out.println( |
| 82 | +"- ERROR creating output directory '" +outputFile.getParentFile().getAbsolutePath() +"'"); |
| 83 | + } |
| 84 | + } |
| 85 | +System.out.println("- Downloading to: " +outputFile.getAbsolutePath()); |
| 86 | +try { |
| 87 | +downloadFileFromURL(url,outputFile); |
| 88 | +System.out.println("Done"); |
| 89 | +System.exit(0); |
| 90 | + }catch (Throwablee) { |
| 91 | +System.out.println("- Error downloading"); |
| 92 | +e.printStackTrace(); |
| 93 | +System.exit(1); |
| 94 | + } |
| 95 | + } |
| 96 | + |
| 97 | +privatestaticvoiddownloadFileFromURL(StringurlString,Filedestination)throwsException { |
| 98 | +if (System.getenv("MVNW_USERNAME") !=null &&System.getenv("MVNW_PASSWORD") !=null) { |
| 99 | +Stringusername =System.getenv("MVNW_USERNAME"); |
| 100 | +char[]password =System.getenv("MVNW_PASSWORD").toCharArray(); |
| 101 | +Authenticator.setDefault(newAuthenticator() { |
| 102 | +@Override |
| 103 | +protectedPasswordAuthenticationgetPasswordAuthentication() { |
| 104 | +returnnewPasswordAuthentication(username,password); |
| 105 | + } |
| 106 | + }); |
| 107 | + } |
| 108 | +URLwebsite =newURL(urlString); |
| 109 | +ReadableByteChannelrbc; |
| 110 | +rbc =Channels.newChannel(website.openStream()); |
| 111 | +FileOutputStreamfos =newFileOutputStream(destination); |
| 112 | +fos.getChannel().transferFrom(rbc,0,Long.MAX_VALUE); |
| 113 | +fos.close(); |
| 114 | +rbc.close(); |
| 115 | + } |
| 116 | + |
| 117 | +} |